Product features and usage precautions: 1. It has the functions of rainproof, sun-proof, mold-proof, tensile, folding, and weathering resistance, and also features acid and alkali resistance, high-temperature resistance, and is easy to wash and fold. 2. This product should be kept away from sharp metal edges during use. Product application: 1. It can be used as a freight tarpaulin for cars, trains and ships. 2. It can be used to cover the stored goods in open-air warehouses at stations, docks, seaports and airports. 3. It can be used to build temporary grain silos and for covering various crops in the open air. 4. It can be used as a material for building temporary sheds and warehouses at construction sites, power construction sites and other construction sites.